matern.hessian.phi {RiskMap} | R Documentation |
\phi
Computes the second derivative of the Matern correlation function with respect to \phi
.
matern.hessian.phi(U, phi, kappa)
U |
A vector of distances between pairs of data locations. |
phi |
The scale parameter |
kappa |
The smoothness parameter |
A matrix with the values of the second derivative of the Matern function with respect to \phi
for the given distances.
Emanuele Giorgi e.giorgi@lancaster.ac.uk
Claudio Fronterre c.fronterr@lancaster.ac.uk